GB312046A - Improvements in and relating to the manufacture of concentrated acetic acid - Google Patents
Improvements in and relating to the manufacture of concentrated acetic acidInfo
- Publication number
- GB312046A GB312046A GB9360/29A GB936029A GB312046A GB 312046 A GB312046 A GB 312046A GB 9360/29 A GB9360/29 A GB 9360/29A GB 936029 A GB936029 A GB 936029A GB 312046 A GB312046 A GB 312046A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acetic acid
- petroleum
- water
- pipe
- column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
- C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
312,046. Distilleries des Deux-SÞvres. May 19, 1928, [Convention date]. Acetic acid is extracted from its aqueous solutions by solvents sparingly soluble in water and having a boiling point which may be close to or identical with that of acetic acid, the resultant extract being distilled in a continuous manner with an entraining liquid capable of forming a binary azeotropic mixture both with acetic acid and with water, the boiling point of the latter mixture being the lower. For example, 30 per cent acetic acid is extracted with butyl acetate. forming a solution containing 16 per cent acetic acid and 5.5 per cent water. This is introduced by a pipe 2 into a column 1 containing the requisite quantity of a petroleum fraction boiling between 99 and 101‹ C. A binary mixture of water and petroleum boiling at 80‹ C. passes up into a condenser 4 and thence to a separator 5 from which the petroleum layer is returned by a pipe 7. A binary mixture of acetic acid and petroleum boiling at 94‹ C. passes out at 8 through a condenser 9 to a separator 10, from which the petroleum layer is returned by a pipe 11. The lower layer of 90-99 per cent acetic acid is passed to a column 13 containing petroleum; the final traces of water are distilled off as petroleum-water mixture to a condenser 15 and a separator 16. Part of the water is returned by a pipe 18 to prevent the rise. of acetic acid in the column 13, and the remainder by a pipe 17 to a column 1. The petroleum is returned by pipes 19, 20 to columns 13, 1 respectively. Anhydrous acetic acid is withdrawn from pipe 14, and butyl acetate from the bottom of the column 1.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR312046X | 1928-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB312046A true GB312046A (en) | 1930-01-16 |
Family
ID=8889328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9360/29A Expired GB312046A (en) | 1928-05-19 | 1929-03-22 | Improvements in and relating to the manufacture of concentrated acetic acid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB312046A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2302470A1 (en) * | 2003-08-12 | 2008-07-01 | Amt International, Inc. | System and method for acetic acid recovery during terephthalic acid production |
-
1929
- 1929-03-22 GB GB9360/29A patent/GB312046A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2302470A1 (en) * | 2003-08-12 | 2008-07-01 | Amt International, Inc. | System and method for acetic acid recovery during terephthalic acid production |
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